10 Mysterious Photos That Nobody Can Explain
8. The Hook Island Sea Monster

Some have claimed it's an elaborate photo editing job, others a shoal of fish, but many live in hope that the image captured by Robert Le Serrec at Stonehaven Bay on Hook Island in Queensland is proof that sea monsters exist.
Shot in 1964, Le Serrec's infamous photograph appears to show a swirling black mass beneath the water which many have likened to a gigantic tadpole.
The photo became an instant hit in cryptozoology circles and, over the years, evidence for and against its authenticity has presented itself.
Le Serrec has never admitted to staging it, and while you'll find the hoax school of thought has the most subscribers, only the brave swim at Stonehaven Bay these days.